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Zend Framework tutorial - Zend_Db_Table_Rowset usage example analysis, zendframework2 example
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Home Backend Development PHP Tutorial Zend Framework tutorial - Zend_Db_Table_Rowset usage example analysis, zendframework2 example_PHP tutorial

Zend Framework tutorial - Zend_Db_Table_Rowset usage example analysis, zendframework2 example_PHP tutorial

Jul 12, 2016 am 08:56 AM
db framework table zend

Zend Framework tutorial - Zend_Db_Table_Rowset usage example analysis, zendframework2 example

This article describes the Zend Framework Zend_Db_Table_Rowset usage example. Share it with everyone for your reference, the details are as follows:

1. Introduction

Zend_Db_Table_Rowset is an iterator of the Zend_Db_Table_Row object collection. Generally speaking, you cannot instantiate Zend_Db_Table_Rowset yourself, but return Zend_Db_Table_Rowset as the result data by calling the Zend_Db_Table::find() method or the fetchAll() method. Next You can traverse the Zend_Db_Table_Row object collection and modify it.

2. Retrieve the result set

First, you need to instantiate a Zend_Db_Table class. 

<&#63;php
// 設(shè)置一個(gè) adapter
require_once 'Zend/Db.php';
$params = array (
  'host'   => '127.0.0.1',
  'username' => 'malory',
  'password' => '******',
  'dbname'  => 'camelot'
);
$db = Zend_Db::factory('PDO_MYSQL', $params);
// 為所有的Zend_Db_Table對(duì)象設(shè)置默認(rèn)
require_once 'Zend/Db/Table.php';
Zend_Db_Table::setDefaultAdapter($db);
// 連接數(shù)據(jù)庫(kù)表
class RoundTable extends Zend_Db_Table {}
$table = new RoundTable();
&#63;>

Next, you can use the Zend_Db_Table::find() method and multiple key values, or use the Zend_Db_Table::fetchAll() method to query the database,
The returned result is a Zend_Db_Table_Rowset object, through which each Zend_Db_Table_Row object in the result set can be traversed.

<&#63;php
// 從表中取回多條記錄
$rowset = $table->fetchAll();
//
// $rowset現(xiàn)在是一個(gè)Zend_Db_Table_Rowset對(duì)象,該對(duì)象中每條記錄就是一個(gè)Zend_Db_Table_Row對(duì)象
//
&#63;>

3. Traverse the result set

Zend_Db_Table_Rowset implements the iterator interface of a simple programming language, that is to say, the Zend_Db_Table_Rowset object can be processed in a loop, just like using the foreach() function to process an array. Each value retrieved using this method is A Zend_Db_Table_Row object corresponding to the data in the table. You can view, modify and save the properties of the object (i.e. the field values ??in the table.)

<&#63;php
// 連接到數(shù)據(jù)庫(kù)中的表
class RoundTable extends Zend_Db_Table {}
$table = new RoundTable();
// 從表中取回多條記錄
$rowset = $table->fetchAll();
// 顯示所有的記錄
foreach ($rowset as $row) {
  // $row 是一個(gè) Zend_Db_Table_Row 對(duì)象
  echo "<p>" . htmlspecialchars($row->nobleTitle) . " "
    . htmlspecialchars($row->firstName) . "'s "
    . "favorite color is " . htmlspecialchars($row->favoriteColor)
    . ".</p>/n";
  // 更新我們顯示改行的次數(shù)
  // (對(duì)應(yīng)表中的"times_displayed"字段)
  $row->timesDisplayed ++;
  // 保存新記錄.
  $row->save();
}
&#63;>

Readers who are interested in more zend-related content can check out the special topics of this site: "Zend FrameWork Framework Introductory Tutorial", "php Excellent Development Framework Summary", "Yii Framework Introduction and Summary of Common Techniques", "ThinkPHP Introductory Tutorial" , "php object-oriented programming introductory tutorial", "php mysql database operation introductory tutorial" and "php common database operation skills summary"

I hope this article will be helpful to everyone’s PHP programming based on the Zend Framework framework.

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  • Zend Framework tutorial - detailed explanation of Zend_Db_Table usage
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  • Zend Framework development classic tutorial
  • Zend Framework Smarty extension implementation method
  • Zend Framework routing mechanism code analysis
  • Zend Framework implements a guestbook with basic functions (with demo source code download)
  • Zend Framework implements the method of storing sessions in memcache
  • Detailed explanation of usage of Zend Framework paging class
  • Zend Framework implements multiple file upload function example
  • Environment configuration for getting started with Zend Framework and the first Hello World example (with demo source code download)
  • Connecting the database in Zend Framework tutorial And perform the method of adding and deleting the query (with demo source code download)
  • Detailed explanation of the Zend_Db_Table table association instance in the Zend Framework tutorial

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